[TheList] Wouxun cheap transceivers chargers.

Mon Jul 16 05:07:55 AEST 2012

Hi Gary,

That is a potential problem with Lithium based Batteries. Maybe the 
Wouxun Batteries are fitted with a thermal fuse, but on this particular 
radio the fuse was faulty? I don't know all the answers.

What is obvious is the Chinese Manufacturer has excluded a necessary 
heatsink, I expect there are a number of these radios in the market 
already and all owners would benefit from the simple act of adding a 
heatsink to the transistor.

In any case, it seems the overheating found on this radio isn't the 
normal mode of failure, so I guess the risk isn't as great as I was 
concerned it may be.

Maybe other transistors are going base to emitter short not collector 
emitter and this one was an unusual failure... compounded by a battery 
with a defective thermal fuse? I felt obligated to seek further info & 
bring the lack of a heatsink on the transistor to others attention. Now 
I have further info, my concerns about these being a potential Lucifer 
device are reduced.

Regards,

Neill.

On 15/07/2012 6:00 p.m., GaryNZ wrote:

> Isn't overheating lithium batteries potentially explosive?
>